fix test so that it works if the ls command is not in /bin (it's in /usr/bin/ls on my system)
fix test so that it works if the ls command is not in /bin (it's
in /usr/bin/ls on my system)


git-svn-id: 4b064e69dc630d28214c1e1442d27300cccf8e9a@200376 c90b9560-bf6c-de11-be94-00142212c4b1

DQNEO/PEAR_Exception